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#include<fstream>
using namespace std;
ifstream f("tablete.in");
ofstream g("tablete.out");
int i,j,r,k,n,v[1012][1012];
int main()
{
for(f>>n>>k,i=1;i<=n;++i)
for(j=1;j<=k;++j)
v[i][j]=++r;
for(i=1;i<=n;++i)
for(j=k+1;j<=n;++j)
v[i][j]=++r;
if(k&1) {
for(i=2;i<=n;i+=2)
swap(v[i][1],v[i-1][k]);
if(n&1)
swap(v[n][k],v[1][k+1]);
}
for(i=1;i<=n;++i,g<<'\n')
for(j=1;j<=n;++j)
g<<v[i][j]<<' ';
return 0;
}